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Share-Based Compensation (Details Narrative) - USD ($) | 12 Months Ended
--- | ---
Dec. 30, 2017 | Dec. 31, 2016 | Jan. 02, 2016
2007 Equity Incentive Plan |  |  |
Remaining amount available for issuance | 1,400,000 |  |
Employee [Member] |  |  |
Unrecognized compensation expense | $ 5,700,000 |  |
Cost is expected to be recognized over a weighted average period | 2 years 6 months |  |
Recognized share based compensation expense | $ 4,400,000 | $ 1,100,000 | $ 1,500,000
NonEmployee [Member] |  |  |
Closing stock price | $ 5.88 |  |
Unrecognized compensation expense | $ 651,000 |  |
Cost is expected to be recognized over a weighted average period | 2 years 4 months 24 days |  |
Recognized share based compensation expense | $ 171,000 | $ 61,000 | $ 435,000
Performance Based Stock Options [Member] |  |  |
Closing stock price | $ 5.88 |  |
Market Based Stock Options [Member] |  |  |
Closing stock price | $ 5.88 |  |

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- Definition The amount of expense, net of income tax, recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References No definition available. + Details
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- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Unrecognized cost of unvested options awarded to employees as compensation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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